IP Address Allocation
5-10
8000-A2-GB21-20
November 1997
Service IP Address Allocation
Each NSP allocates IP addresses for the components in each service network as
described below. How the IP addresses are allocated is also noted.
Component
IP Address Requirement
Service Domain Router
The router that routes NSP traffic to the HotWire DSLAM
DSL cards must have one IP address in each service
domain. The router should be multihomed on its LAN port
connection to the HotWire DSLAM.
Since 16 service domains are supported per DSL card
and there can be 18 DSL cards per HotWire DSLAM, up
to 288 NSP IP addresses may be required on the router’s
interface to support a maximally configured HotWire
DSLAM system. However, typically you would organize
your domains in such a way that fewer IP addresses
would be needed.
DSL Card
Each DSL card can support 16 NSP domains (four for
each HotWire RTU). For each different NSP supported by
the DSL card, there must be an IP address in the same
domain for the DSL card 10BaseT interface (e1a).
Therefore, the total number of DSL card IP addresses
required is determined by the number of NSPs supported
by the HotWire RTUs.
HotWire 5446 RTU
Each HotWire 5446 RTU can support four NSP domains.
Each HotWire 5446 RTU with an end-user system in the
domain of an NSP must have one service domain IP
address in the same subnetwork.
There could be:
Four service domain IP addresses per HotWire 5446
RTU,
Four HotWire 5446 RTU per 8546 DSL card, and
18 DSL cards per HotWire DSLAM.
This means that a maximally-configured HotWire DSLAM
system with 72 HotWire 5446 RTUs could have 288
service domain IP addresses.
To configure the HotWire 5446 RTU service domain IP
addresses, use an SNMP application, such as Paradyne’s
DCE Manager. They are also configurable using
Paradyne’s IP Injection Tool or from any MIB browser.
End-User System (ES)
Each end-user system must have an IP address.
The IP address is assigned by the NSP either statically or
dynamically. For information about dynamic IP addressing,
see the following section.
